Stocks clawed back from their worst levels but still closed in the red Wednesday, dragged by the defensive sectors such as consumer staples and utilities, as investors questioned when the Federal Reserve would start winding down its stimulus program.

The SEC has concluded its investigation into Facebook's IPO resulting in a $10 million fine to the Nasdaq, reports CNBC's Kayla Tausche. Stacy Janicki, Carmichael Lynch and Peter Shankman, Shankman Honig, discuss Nissan and other companies' decision to pull their ads from the social media site.

Nissan is canceling its Facebook advertisements, reportedly because of the increase in hate speech on the site, and a new report finds more working moms are the primary bread-winner in their families. CNBC's Michelle Caruso-Cabrera and John Carney discuss.

The Nasdaq agrees to pay a $10 million fine for failures during Facebook's IPO, reports CNBC's Kayla Tausche. And the FMHR traders discuss whether the makeup of the rally has changed, with Mike Santoli, Yahoo! Finance.